My antenna is mounted on a magnetic base and stays on my Mule. I never would have been in the market for an antenna, except that the first time I used the garmin antenna it broke.
![Sad](http://www.easttexashogdoggers.com/forum/Smileys/default/sad.gif)
One thing I have learned, when swapping antenna, Just snug it up, don't use any real force when tightening at the base of the astro.